Non alphanumeric characters
When a request to send an SMS is received by our gateway, it is processed by HTTP and some characters can commonly cause errors, which may lead to unpredictable results from your request.
To correct this issue, you should urlencode the message you want to send, so that the HTTP does not interfere with the message, this involves re-writing the message with characters such as & (ampersand) and # (hash) replaced with %23, %26 and so on. If your SMS program is written using PHP, there is a prebuilt function for performing this, which you can see here:
It is important however, that you initially change spaces to ‘+’ before url encoding the message.
As usual, if you have any questions regarding this technology, or anything related to the Hosting Ireland SMS Gateway API, either comment below, or in our forum or email firstname.lastname@example.org.